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Compensation control system based on flywheel energy storage

A technology of compensation control and flywheel energy storage, applied in the field of energy storage, can solve problems such as grid voltage sags

Inactive Publication Date: 2021-09-14
北京群菱能源科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In order to solve the shortcomings of the above-mentioned prior art, the object of the present invention is to provide a compensation control system based on flywheel energy storage to solve the problem of voltage sag in the power grid

Method used

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  • Compensation control system based on flywheel energy storage
  • Compensation control system based on flywheel energy storage
  • Compensation control system based on flywheel energy storage

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Embodiment Construction

[0024] In order to further understand the structure, features and other purposes of the present invention, the attached preferred embodiments are now described in detail with accompanying drawings as follows. The embodiments described in the accompanying drawings are only used to illustrate the technical solutions of the present invention and are not limiting this invention.

[0025] Such as figure 1 Shown is a structural diagram of a compensation control system based on flywheel energy storage proposed by the present invention. The flywheel energy storage motor, converter A, converter B, transfer switch, bypass switch, and series transformer are included; the flywheel energy storage motor is rectified through the converter A and the converter B and inverter, the transfer switch and the bypass switch are used to control compensation, and the series transformer is used to connect electric energy to the grid.

[0026] Such as figure 2 Shown is a structural diagram of a flywh...

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Abstract

The invention provides a compensation control system based on flywheel energy storage. The system comprises a flywheel energy storage motor, a converter A, a converter B, a change-over switch, a bypass switch and a series transformer, the flywheel energy storage motor carries out rectification and inversion through the converter A and the converter B, the change-over switch and the bypass switch are used for controlling compensation, and the series transformer is used for connecting electric energy into a power grid. The compensation control system can realize effective conversion between electric energy and flywheel rotor mechanical energy based on a flywheel energy storage charging and discharging control strategy, ensures that the flywheel energy storage system outputs constant power in a discharging state, can timely and accurately compensate the voltage required by the system when the power quality disturbance occurs and generate the minimum load voltage transient distortion, can reduce the compensation control injection active power, saves the energy storage capacity of the flywheel motor, and prolongs the compensation time.

Description

technical field [0001] The invention relates to the field of energy storage, in particular to a compensation control system based on flywheel energy storage. Background technique [0002] In the rapid development of modern industry, the operation of some new power electronic devices and some nonlinear, impactful and asymmetrical loads may cause dynamic power quality problems such as grid voltage rise, drop and instantaneous power supply interruption, and voltage sags in Among many power quality problems, the occurrence frequency is the highest, the impact is the most serious, and the economic loss is the largest. As a new type of power quality compensation device, the dynamic voltage restorer is especially suitable for compensating the voltage sag problem in the power grid. The dynamic voltage restorer has the advantages of simple structure, low device cost, and high compensation efficiency. Based on its high cost performance and good The dynamic performance of the dynamic ...

Claims

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Application Information

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IPC IPC(8): H02J3/30H02J3/12
CPCH02J3/30H02J3/12Y02E60/16
Inventor 姚承勇张进滨姚海强
Owner 北京群菱能源科技有限公司
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